Floor-plane.



P'ATENTED AUG. 18, 1908.

H. PUDER.

FLOOR PLANE. APPLIOATIOH FILED OUT. 21, 1907 m F m F m P orz e ey.

HUGO PUDER, OF BONN, GERMANY.

FLOOR-PLANE.

Specification of Letters Patent.

Patented Aug. 18, 1908.

Application filed October 21, 1907. Serial No. 398,460.

To all whom it may concern:

Be it known that I, HUGO PUDER, locksmith, a subject of the King of Prussia, residing at Bonn, No. 45 Nikolaus strasse, in the Kingdom of Prussia, Empire of Germany, have invented certain new and useful Improvements in Floor-Planes; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My present invention relates to planes and particularly to floor-planes to the front-end of which according to my invention a long handled bow is hinged, whose rear-end presses on the plane only then, when the latter is held in a working position by said handle, and is lifted off the plane by a spring, in order to tilt the plane and thus keep the cutting-edge of the plane iron out of contact with the floor during the time the plane is being drawn back for the commencement of a new working-stroke.

In order to prolong the life of the plane and to safeguard its faultless working a laterally flanged angular guard-plate is loosely placed on the rear-end of the plane in such a manner that the horizontal part of this plate is pressed by said spring against the top of the plane, whereas the vertical leg of said plate is provided with a guide-slot, to receive a guide-pin carried by the rear-end of said bow to steady the latter laterally.

In the accompanying drawing :Figure 1 is a side-elevation of the plane in its working position. Fig. 2 is a similar view of the plane in the position while being drawn back for the commencement of a new workingstroke. Fig. 3 is an end-view of the plane when the rear-end of the bow is lifted ofi the plane.

The plane 1 may be of any suitable construction and to the front-end thereof the forked bow 2 is hinged by means of the screws 3. Just above the top of the plane 1 a oontact-bar 4 is secured between the two front-arms 5 of the bow 2 to strike against the abutment 6 of the plane and thus limit the swinging motion of the latter within said bow. At the apex of the bow is arranged a socket 7 for the reception of the long handle 8, which enables the operator to stand erect and push the plane over the floor or draw it back for the commencement of a new working-stroke. The rear-arms 9 of the bow 2 are connected at their lower ends by an intermediate bar 10, above which a squarepin 11 is arranged upon which a spring 12 is seated, whose free end presses upon the horizontal part of a guard-plate 13 of angular shape. This plate rests loosely upon the plane and is preferably provided with lateral wings 14 to guide said plate on the plane. The vertical leg 15 of the plate 13 is provided with a guide 'slot 16 in which a guide-pin 17, secured to or forming an integral part of the intermediate bar 10, plays. In order to retain the guardplate on the guide-pin, the latter is provided with nuts, set-collars or the like 18.

The operation of the plane is as follows When the plane is pushed forward the pressure exerted upon the handle 8 will bring the loop-shaped rear-end of the bow 2 into contact with the guard-plate 13 and thus press thelatter jointly with the spring 12 downward against the top of the plane. In this position the plane is ready for work and any further power applied to the handle will drive the plane forward and the plane-iron 19 through the projecting parts of the floor. When the plane is used in the neighborhood of sills, walls and the like it is apt to come into sudden contact with them and thereby slacken the plane-iron. To avoid this a rubber-buffer 20 is secured to the front-end of the plane.

When the plane is drawn back for the be ginning of a new working-stroke the operator naturally reduces his pressure on the handle and thus gives the spring 12 a chance to tilt the plane into the position shown in Fig. 2, so that the cutting-edge of the plane-iron 19 is brought out of contact with the floor and thus kept in the best cutting-condition. As the spring 12 presses upon the horizontal part of the plate 13, the latter retains this position until the contact-bar 4 has come into contact with the abutment 6, in which position the plane is retained until it is squarely.

put down again on the floor to commence a new working-stroke.

I claim 1. A floor-plane, comprising a plane, a bow hinged to the front-end of said plane, means for limiting the swinging motion of the plane within said bow, a socket on said bow, a handle secured in said socket, a spring arranged in the rear-end of said bow to press the rearend of said plane downward to disengage the cutting-edge of the plane-iron with the floor during the time the plane is being drawn backward, a guard-plate interposed between said spring and said plane and straddling the latter, a slotted vertical leg on said guardplate, and a guide-pin carried by the rearend of said bow and passing through said slotted leg to guide the rear-end of said bow laterally.

2. A floor-plane, comprising a plane, a bow hinged thereto, means for limiting the swinging motion of said plane in said bow, a socket on said bow, a handle secured in said socket, a pressure-spring arranged in the rear-end of said bow for tilting the plane to keep the cutting-edge of the plane-iron out of contact with the floor during the time the plane is being drawn backward, a laterally flanged guardplate interposed between said spring and said plane, a slotted vertical leg on said guardplate, a guide-pin carried by the rear-end of said bow and passing through said slotted 20 leg to guide the rear-end of said bow laterally, means on said guide-pin for preventing said guard-plate leaving said guide-pin, and I means on the front-end of said plane to break the force of the blow when the plane comes as into contact with a sill, wall and the like.

In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.

HUGO PUDER.

Witnesses LOUIS VANDORN, M. KNEPPERs. 

